The invention relates to a longitudinal sealing device (1) for producing a sealed longitudinal seam (2) on a packaging material (3) which has a tubular portion (4) and a seam portion (5) that adjoins the tubular portion (4) and comprises the sealed longitudinal seam (2). A first layer (6) of the packaging material and a second layer (7) of the packaging material lie one above the other in the seam portion (5). The tubular portion (4) lies above a transport plane (T) of the longitudinal sealing device (1), and the seam portion (5), lying below the transport plane, is moved along a running direction (L) parallel to the transport plane (T). The longitudinal sealing device (1) comprises a positioning device (8) in order to position the two layers (6, 7) relative to each other, a heated sealing roller pair (9) in order to provide the sealed longitudinal seam (2) between the two layers (6, 7), and an unheated conveyor roller pair (10) arranged downstream of the sealing roller pair (9) when seen in the running direction (L). The sealing roller pair (9) comprises two sealing rollers (9a, 9b), a sealing lateral face (17) of which contacts the packaging material (3), and the conveyor roller pair (10) comprises two conveyor rollers (10a, 10b), a conveyor lateral face (18) of which contacts the packaging material. The sealing lateral face (17) of the sealing roller pair (9) is offset relative to the conveyor lateral face (18) in a direction (S) perpendicular to the transport plane.

A pouch machine vertical sealer capable of fusing a pouch film web to form a plurality of spaced vertical seals along a length of the film web to form pouches. The pouch machine vertical sealer includes a sealer wheel rotatable about a vertical axis of rotation and defines a film web path about a periphery of the sealer wheel. The vertical sealer further includes a plurality of vertical sealer land assemblies spaced apart about the periphery of the sealer wheel. Each vertical sealer land assembly includes an impulse heater such that contact between the film web and each impulse heater of the plurality of vertical sealer land assemblies forms the spaced apart vertical seals along the length of the film web.

The invention relates to a horizontal transverse sealing station (10a-b), in particular for a horizontal tubular bag machine (12a-b), for producing transverse sealing seams (14a-b) on at least one film tube (18a-b) transported in a continuous, at least essentially horizontal transport direction (16a-b), comprising a transverse sealing station base (20a-b) fixedly connected to a packing machine (22a-b), a transverse sealing unit (24a-b), and at least one sealing jaw pair (28a-b) movably mounted on the transverse sealing unit (24a-b) and formed by two sealing jaws (26a-b), the sealing surfaces (30a-b) of which come closer to each other during a sealing process in a sealing movement (32a-b), which relative to the transverse sealing unit (24a-b) is provided with at least one movement component (34a-b) in the transport direction (16a-b), in order to seal material layers (36a-b) of the film tube (18a-b) between the sealing surfaces (30a-b) by way of heating and/or applying pressure, and to remove again at the end of the sealing process. According to the invention the transverse sealing unit (24a-b) is driveably mounted on the transverse sealing station base (20a-b) in a displacement movement (38a-b) that is at least substantially parallel to the transport direction (16a-b).

A heat-sealing device is capable of properly changing a pushing force applied from the heat-sealing roll to the packing film in accordance with the feeding rate of the packing film. A heat-sealing device for holding an elongated packing film with a pair of heat sealing rolls arranged in parallel to each other to form a heat sealed portion includes a pushing means made of a first cylinder and a second cylinder for holding the packing film with the heat-sealing rolls by pushing through an action of fluid pressure, a fluid pressure controlling means capable of adjusting the fluid pressure of the pushing means, and a superior controlling means for rendering a total value of pushing forces of the first cylinder and second cylinder into a proper pushing force and operating one or both of the first cylinder and the second cylinder in accordance with the feeding rate of the packing film.

Methods for forming discrete deformations in web materials are disclosed. In some embodiments, the method involves feeding a web into an apparatus having nips that are formed between intermeshing rolls. The apparatus may be in the form of nested or other arrangements of multiple rolls, in which the web is maintained in substantial contact with at least one of the rolls throughout the process, and at least two of the rolls define two or more nips thereon with other rolls. In some embodiments, rolls can be used to expose a different side of the web for a subsequent deformation step. In these or other embodiments, the rolls can be used to transfer the web between rolls in such a manner that it may offset the rolls and/or web so that subsequent deformations are formed at a different cross-machine direction location than prior deformations.

The present invention relates to a device for the ultrasonic processing of materials, which has an ultrasonic processing system, which comprises: an ultrasound generator, a converter (12), a sonotrode (16), and a counter tool (18); wherein the sonotrode (16) and/or the counter tool (18) has a substantially cylindrical sealing surface having at least one elevation (45) and can be rotated such that, during the processing, the elevation (45) rotates about the axis of rotation and comes in contact with the material web (20) during a sealing time, wherein a control apparatus (24) is provided for the ultrasound generator, to which control apparatus a feedback variable from the ultrasound processing system is fed and which control apparatus determines a manipulated variable therefrom and feeds said manipulated variable to the ultrasound generator, wherein a process variable from the processing process is determined and is linked to the manipulated variable determined by the control apparatus (24) before the feeding to the ultrasound generator. In order to provide an improved device for the ultrasonic processing of materials having an ultrasonic processing system, a trigger apparatus (44) is provided, which determines the position of the elevation (45) and is designed to permit or prevent the linking of the process variable to the manipulated variable in accordance with the position determination.

In an example embodiment, an apparatus for making pouch products includes a conveyor system. The conveyor system includes a first receiving location along a path of the conveyor system, and a dosing location along the path of the conveyor system. The apparatus also includes a first material dispensing station configured to transfer a first material to the first receiving location. The first material includes a first elastic layer and a first support layer. The first material dispensing station includes a dispenser roller configured to hold a roll of the first material, a plurality of rollers configured to convey the first material from the dispenser roller to the first receiving location, and a stripper plate configured remove at least a portion of the first support layer from a portion of the first elastic layer.

In a lateral sealing mechanism, a cylindrical film is sandwiched and ultrasonic sealing is performed along a direction that intersects a conveying direction while a first horn and a first anvil, and a second horn and a second anvil rotate. The first horn is mounted on a first rotating body in a state of being coupled to a plurality of vibrating elements. The second horn is mounted on the second rotating body in a state coupled to a plurality of vibrating elements. A securing member grips a horn unit, which includes the horns and the plurality of vibrating elements, on the forward and rearward sides in the direction of rotation of the horn assembly in the vicinity of the node of ultrasonic vibration and secures the horn unit to the first rotating body and the second rotating body, respectively.

A fin sealer and method to seal a radially outwardly directed fin of a tubular web structure by directing the fin through a nip between a first and a second fin sealing rollers while communicating heat to the fin through at least one of the fin sealing rollers is provided. The fin sealer is configured to maintain a nominal face-to-face relation between an outer annulus of the first fin sealing roller and an outer annulus of the second fin sealing roller with a flexible connection between a hub element of the second fin sealing roller with the outer annulus of the second fin sealing roller.

A multi-layer thermoplastic film include a first film of thermoplastic material, a second film of thermoplastic material bonded to the first film, and an odor control component disposed between the first film and the second film. A method of manufacturing a multi-layer thermoplastic film coextruding a plurality of layers to form a first film, coextruding a plurality of layers to form a second film, disposing at least one odor control component on at least one of the first film and the second film, and bonding the first and second films together such that the at least one substance is disposed between the first film and the second film.